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930s rule the wasteland
Join Date: Dec 2006
Location: Spotsylvania ,Virginia
Posts: 1,219
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Igniion Woes
Car cut off while driving, engine will start in the crank position but when key is released(key on) it stalls . I can keep the car running if i keep slight pressure in between crank and key on. But to make it better its not the ignition switch swapped out with a brand new one and it does the same thing with new one.
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1980 930 Turbo 1993 Corrado 1983 944 1984 944 2001 VW golf TDI |
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08-14-2009, 05:57 PM
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Do you got an alarm in there? Check that if you do and make sure it isnt disconnecting the circuit.
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Kris @ Tech9 86' 930/GT-40R Sold  94' Rustang GT daily (long gone) 2008 C6/Z51 Corvette |
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08-14-2009, 06:24 PM
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Registered
Join Date: Jul 2008
Location: Central Washington State
Posts: 4,412
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OK, so you can rule out the switch then...which means it may not be ignition related. Maybe fuel related?
Let's force your fuel pumps to run to narrow this down a bit. Cranking the engine moves air across the metering plate/arm connected to the fuel distributor, deflecting it enough to engage a switch and start the pumps. Perhaps your metering arm is not moving far enough to trip the switch. Try this: Unplug the blue connector to the switch back behind the top of the fuel head. The pumps should run continuously with the key in the on position. Try starting it then.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ. |
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08-14-2009, 07:01 PM
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930s rule the wasteland
Join Date: Dec 2006
Location: Spotsylvania ,Virginia
Posts: 1,219
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Will try to disconnect air folw meter switch and let you know!
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1980 930 Turbo 1993 Corrado 1983 944 1984 944 2001 VW golf TDI |
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08-14-2009, 07:25 PM
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930s rule the wasteland
Join Date: Dec 2006
Location: Spotsylvania ,Virginia
Posts: 1,219
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No dice disconnected and wont start, wire diagrams are good but dont tell you where anything is located
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1980 930 Turbo 1993 Corrado 1983 944 1984 944 2001 VW golf TDI |
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08-15-2009, 06:32 AM
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930s rule the wasteland
Join Date: Dec 2006
Location: Spotsylvania ,Virginia
Posts: 1,219
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jump the air contact relay and runs fine , checking siganl now
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1980 930 Turbo 1993 Corrado 1983 944 1984 944 2001 VW golf TDI |
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08-15-2009, 07:08 AM
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930s rule the wasteland
Join Date: Dec 2006
Location: Spotsylvania ,Virginia
Posts: 1,219
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brown with black trace and ground for air contact switch melted together. system was disconnected for this reason. ran a new wire with new ground runs beautiful!
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1980 930 Turbo 1993 Corrado 1983 944 1984 944 2001 VW golf TDI |
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08-15-2009, 12:32 PM
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2002 Porsche 996TT
